EVE's golden rule: Don't fly anything you can't afford to lose.
BNI's corollary: Anything you undock will be lost.
Listen to your FC. Do not talk over your FC. The exception to the latter is to scream bloody murder if something unexpected happens tactically and no-one else seemed to notice. (Fleet survival trumps radio politeness.) Add your FC to your fleet watch list. Add anyone else your FC recommends to your watch list. Keep chatter to the fleet text channel, and even then you should be too busy when shit gets real to chatter there, either. Nobody cares if you still need to load ammunition, nobody cares for your inane chattering.
You add people in your fleet to the watch list by right-clicking them in the fleet member list or a chat channel list and selecting Add to Watch List from the menu. (It may be under the Fleet sub-menu depending on where you're selecting their name from.)